Hi zijun_hu, [auto build test WARNING on mmotm/master] [also build test WARNING on v4.7 next-20160801] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system] url: https://github.com/0day-ci/linux/commits/zijun_hu/mm-memblock-c-fix-NULL-dereference-error/20160802-130708 base: git://git.cmpxchg.org/linux-mmotm.git master config: i386-randconfig-x009-201631 (attached as .config) compiler: gcc-6 (Debian 6.1.1-9) 6.1.1 20160705 reproduce: # save the attached .config to linux build tree make ARCH=i386 All warnings (new ones prefixed by >>): In file included from include/linux/kernel.h:13:0, from mm/memblock.c:13: mm/memblock.c: In function 'memblock_patch_verify': >> mm/memblock.c:1713:11: warning: format '%llx' expects argument of type 'long long unsigned int', but argument 3 has type 'phys_addr_t {aka unsigned int}' [-Wformat=] pr_info("[%#016llx]\t[%#016llx-%#016llx]\n", ^ include/linux/printk.h:260:21: note: in definition of macro 'pr_fmt' #define pr_fmt(fmt) fmt ^~~ >> mm/memblock.c:1713:3: note: in expansion of macro 'pr_info' pr_info("[%#016llx]\t[%#016llx-%#016llx]\n", ^~~~~~~ mm/memblock.c:1713:11: warning: format '%llx' expects argument of type 'long long unsigned int', but argument 4 has type 'phys_addr_t {aka unsigned int}' [-Wformat=] pr_info("[%#016llx]\t[%#016llx-%#016llx]\n", ^ include/linux/printk.h:260:21: note: in definition of macro 'pr_fmt' #define pr_fmt(fmt) fmt ^~~ >> mm/memblock.c:1713:3: note: in expansion of macro 'pr_info' pr_info("[%#016llx]\t[%#016llx-%#016llx]\n", ^~~~~~~ mm/memblock.c:1719:11: warning: format '%llx' expects argument of type 'long long unsigned int', but argument 3 has type 'phys_addr_t {aka unsigned int}' [-Wformat=] pr_info("[%#016llx]\t[%#016llx-%#016llx]\n", ^ include/linux/printk.h:260:21: note: in definition of macro 'pr_fmt' #define pr_fmt(fmt) fmt ^~~ mm/memblock.c:1719:3: note: in expansion of macro 'pr_info' pr_info("[%#016llx]\t[%#016llx-%#016llx]\n", ^~~~~~~ mm/memblock.c:1719:11: warning: format '%llx' expects argument of type 'long long unsigned int', but argument 4 has type 'phys_addr_t {aka unsigned int}' [-Wformat=] pr_info("[%#016llx]\t[%#016llx-%#016llx]\n", ^ include/linux/printk.h:260:21: note: in definition of macro 'pr_fmt' #define pr_fmt(fmt) fmt ^~~ mm/memblock.c:1719:3: note: in expansion of macro 'pr_info' pr_info("[%#016llx]\t[%#016llx-%#016llx]\n", ^~~~~~~ mm/memblock.c:1726:11: warning: format '%llx' expects argument of type 'long long unsigned int', but argument 3 has type 'phys_addr_t {aka unsigned int}' [-Wformat=] pr_info("[%#016llx]\t[%#016llx-%#016llx]\n", ^ include/linux/printk.h:260:21: note: in definition of macro 'pr_fmt' #define pr_fmt(fmt) fmt ^~~ mm/memblock.c:1726:3: note: in expansion of macro 'pr_info' pr_info("[%#016llx]\t[%#016llx-%#016llx]\n", ^~~~~~~ mm/memblock.c:1726:11: warning: format '%llx' expects argument of type 'long long unsigned int', but argument 4 has type 'phys_addr_t {aka unsigned int}' [-Wformat=] pr_info("[%#016llx]\t[%#016llx-%#016llx]\n", ^ include/linux/printk.h:260:21: note: in definition of macro 'pr_fmt' #define pr_fmt(fmt) fmt ^~~ mm/memblock.c:1726:3: note: in expansion of macro 'pr_info' pr_info("[%#016llx]\t[%#016llx-%#016llx]\n", ^~~~~~~ vim +1713 mm/memblock.c 1697 pr_info(" memory size = %#llx reserved size = %#llx\n", 1698 (unsigned long long)memblock.memory.total_size, 1699 (unsigned long long)memblock.reserved.total_size); 1700 1701 memblock_dump(&memblock.memory, "memory"); 1702 memblock_dump(&memblock.reserved, "reserved"); 1703 } 1704 1705 void __init_memblock memblock_patch_verify(void) 1706 { 1707 u64 i; 1708 phys_addr_t this_start, this_end; 1709 1710 pr_info("in %s: memory\n", __func__); 1711 for_each_mem_range_rev(i, &memblock.memory, NULL, NUMA_NO_NODE, 1712 MEMBLOCK_NONE, &this_start, &this_end, NULL) > 1713 pr_info("[%#016llx]\t[%#016llx-%#016llx]\n", 1714 i, this_start, this_end); 1715 1716 pr_info("in %s: reserved\n", __func__); 1717 for_each_mem_range_rev(i, &memblock.reserved, NULL, NUMA_NO_NODE, 1718 MEMBLOCK_NONE, &this_start, &this_end, NULL) 1719 pr_info("[%#016llx]\t[%#016llx-%#016llx]\n", 1720 i, this_start, this_end); 1721 --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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